| 1. | He is reputed to have been a good astronomer . 他以一个优秀的天文学者闻名于世。 |
| 2. | The amateur astronomer will be well able to fulfill these . 业余天文学家是可能做到这些的。 |
| 3. | A prominent soviet astronomer puts it well . 一位著名的苏联天文学家对此有过十分精辟的描绘。 |
| 4. | Astronomers have never before observed such a phenomenon . 天文学家们过去从未观察到这种现象。 |
| 5. | The ancient astronomers divided zodiac into 12 equal segments . 古代天文学家把黄道带分为12等分。 |
| 6. | It is the only tangible object the astronomer can handle . 这是天文学家能够掌握的唯一可接触的对象。 |
| 7. | Astronomers had not previously needed to devise such a mechanism . 天文学家无需急于去探寻这种机理。 |
| 8. | Astronomers have divided the celestial sphere into a total of 88 regions . 天文学家已把天球划分为88个区域。 |
| 9. | Astronomers have breached the powerful armor of the earth's atmosphere . 天文学家摆脱了地球大气的严重束缚。 |
| 10. | The telescope can be set on any star of interest to astronomers . 望远镜可以对准任何一颗天文学家感兴趣的星。 |